Tripping mechanism for printing-machines.



E. MRRISUN.

TRIPPING MECHANISr FOR PRNTING MAGIINES.

APPLICATION TUQED FBB.27,190S.

Fatente June 2, 119ML..

2 SHEETS-SHEET 1.

[11H um Li or L. E. MORRISON..

'lBIPPlNC-r MEUHANISM FOR PRINTING MAGHNES.;

APBLIGATION FILED P51127, w08,

2 SHEETS-SHEET 2.

l ,09 8,9 1 L atenm lum 2, 1914..

LEWIS tlltihlllm Patented llene 3, lille.

' To all 'whom t iin-cy concern:

' pivoted on the i tain disadvantages;

must be understood that applicable to other ty;

:in combination with einer inachlne elements the machine i torni.

Beit known that l, llinivis Montuschi, a citlzen ofthe United States oit America, and n resident of Newark, Essex county, New

Jersey, have invented certain new and usefullmprovements in Tripping Mechanism for Printing-Maohines, of 'which the following is a specilication. f

This invention relates to a throw-nfl' or tripping mechanism tor platen I Jresses. ore particularly this tripping mechanism has been designed Ytor use .in combination` with" a sheet feeding device such es described and `,claimed by ine in February 17, 1908 Ser. llo. .eil-6,203. .But it than the feed mechanism interred to above. In this instance, my invention is shown applied to a platen usually called a 4 type are provided with mechanical tripping ete at wil by means ot a trippin that when a sheetl misses, the operator can tripthe form member and prevent smut@ ting ofthe platen. it will be clear that this method ol? tripping the press possesses cerit is not automatic 1n.

its action, but the operator -depends upon being near the tripping lever for operating the sameyfurther, the operator must keep his attention lfocused on the operation of i order to trip it when necessary, and even when the operator is attentivehe cannot alitsys trip the pressin time.

|This invention provides ior an. automatic tripping mechanism ior operating the trip ping leveren the press andythns trip the No changes in the construction of the "press er its tripping mechanism are .noces-y which is normally broken, hut closed when a sheet misses, and the closing` `-sary,l but oniv vaccomplish ih 'ofthis invention the operator y can attend to more than one such parts are added as will e desired result. By the use can direct his Whole attention to the ifeedwif the machine hand feCL-or il? the machine is autor matic throughout its operation, the ope 1ator press and genverally super-intend the operation without bein confined to one machine.

T e invention provides en electric circuit which is oi. the circuit is caused to energize an elecl an application ledl this invention is press having a movable platen and )es ofvmachines and i press oi' a wellhnown type1 l job press. Presses of this mechanism which is normally oper-Q Y lever one side oit the mac une so` tro magnet, which in turn actuates certain mechanical eieinents lor throwing the tripping lever into ltripped position.

lt is, oi course, immaterial just how the various Y)parte are constructed and placed on the machine, but the distinguishingK "feature oi' this invention is, that elements or parte already on the press contribute to eetuate this tripping device.

To this end the invention comprises such elements and tentures oli' construction as Will hereinellter appear in the detailed de scription While reference is had to the no companying drawings, in Which-` Figure l a side elevation of a with a" trippingr mechanism embodying` my invention; Fig. 2 is a perspective View of the feeding device and parts of the trippin v mechanism. 3 is a detail side view oi' the tripping lever with parts of the tripping mechanism; ligs. 4; and 5 are plan and front vievvs respectively of Fig. 3j and Fig.4 6 is a diagram oi the electrical connections.

Referring' ynovv to Fig. l the reference numeral indicates the traine oi the inachine having the platen 2 and the form member El, which latter is shown tripped. 4; is the main sha-ft carrying' a pinion 5 which drives the gear 6 on shaft 'i'. on the one side oi. the machine and on the opposite side, on shaft 7, is a crank dish 8. The forni is oscillated by means of two connecting rods 9 pivoted at 10i-o the said gear and crank ping lever pivoted at 12 and connected at 13 to a link 111 which is pivoted at 15 to a lever 16 fast on the rockshaift 1S. Inside the freine the shaft 18 carries a lever 19 on which is lined :i pin 20. This pin travelsin a slot 21 in the hell crunk on shaft't 23. A link 24- conne'cts the bell crank with a lever 27 on the shnit 'which carries the forni. y

This latter shaft is mounted eccentrically .in the form carrying member 26 as usual. 'llhis above described mechanismv is found on presses of this type and vvorlis as ich lows:

When the lever ll is thrown into the position shown in full linee, the shaft 1.8 is rocked rearwardly or to the left ns viewed in .lligfl and the pin Qtiaveling in the groove or slot Qi in the bell crank :rotates the 'latter far enough to let the linl: Q/i push 'the lever upwardly and turn the shaft 25 its hushinrs tirocini the pivot :ill end The gear 6 is dish: respectively. l1, is the trip-- move the form a slight distance away from the platen, when the parts are in the position shown; or in other words by throwing the lover 11 forwardly or to the right es viewed in Fig. 1 the form is tripped.

Referring now to Fig. 2, the refe-rence numerals 230, 30 indicate two brackets which mayT be fastened to the frame by any suitable means. Between and carried by the .said brackets is the feeding device proper. 31 indicates a shaft journaled in the brackets and on which are hinged the arms 32, 32 carrying a second shaft Tapes 34 pass over these tivo, shafts, and are driven from gear G through the gears 35, 36, 37 and 38, which latter is fast on shaft 31. The paper is in this instance supposed to be placed' by hand upon the tapes 34 which in turn eoir vey the sheet to the platen. During its passage over the tapes, the sheet is side registered by the guides 39, 39 and is moved toward the stops t0, 40 carried by rockshaft 41. At the proper time the sheet is permitted to pass under the stops and drop on the platen, and this is accomplished'by rocking the shaft 41 upwardly, thus lifting the stops. The shaft 451 is rocked through the instrumentality of the lever 4Q, link 43, bell crank 44, link i5 pivotcd to lever 46 carrying cam roll 47, which latter coacts with the usual platen locking cani 48 on shaft 7. spring; 4t" keeps the stops 40 normally on th e shaft 33. Two levers 50, 50 are 'pivoted at 51 on the brackets 30 and carry cach roll 52 coacting with cams 53, 52u carried by the arms On the platen are mounted two rollers 5ft, on which the levers 50 rest. r1`hus it will be clear that as the platen moves, the feed is oscillated around the shaft 3i through the instrumentality of the rollers 54, levers 50, rollers 52 and cams 53, and in this manner the feed is always in the proper position with relation to the platen and when the latter moves down into printing position the feed is lifted up out of the way by reason of the rollers 54 on the platen. The position of the platen locking cam L18 vis not changed any by using this feed, but the various connections between the cam and the stops are so proportioned as to raise the stops at the proper timewhen the parts are inthe position shown in Fig. 2. Various other details could be nientioncd about this feeding mechanism, but

as 1 do not claim the construction Vthereof i in this application, the above description will be suilieient to understand the main operation thereof and its relation to the tripping mechanism, which 1 will now describe.

Looscly pivot-ed on the shaft 41 are two arms GO, 60 which carry a rod or bar (31 on which is mounted Jfast a ilug carrying` a lip 621 of brass which forms one terminal in the electrical circuit as seen in Fig. G. Directly below this lip is the second fixed termessie minai in the shape of a brass plate 63 earried by a bar 64 and of course insulated therefrom. r1`he rod 61 is free to oscillate in the arms 60 and is operated by the lever 65 connected by a iiexible connection 66 to the one end of a bell crank 67 pivoted :Lt-68, where also the lever 4G is pivoted; the other arm of the bell crank 67 carries a cam roll 69 coacting with the platen locking cam 48.

70 indicates the source of electrical supply and in the circuit is inserted an electro-7 magnet 71 having an armature 72. The eircuit is normally open during the operation of the machine, the movable contact 62 being held up as long as the cam roll 69 is on the high part of the cam 48.

The parts are so timed, however, that when a sheet is fed by the tapes to the stops 110 and have reached the same, the cam roll 69 drops on the low part of the cam 48, which causes the contact GQ to drop on the sheet and the circuit will remain open. Next the cam roll Li7 drops on the low part of cam e8, thus raising the stops 40 to allow the sheet to pass on to the platen, and the stops in turn raise the rod 61 and thereby the contact 62. The platen now passes down into printing position, but now both the rolls 47 and (39 are on the high part of the cam 48 and the stops are down and the circuit broken. As the platen again returns to receive the next sheet, the cam roll 69 drops first on the low part of the cam 18,

which is fed ohto the stops, next the cam roll 69 drops on the low part of the cam and the operation is repeated. If, however, the sheet should not be in place against tact 62 will then drop directly on contact G3 and the magnet 71 will be energized. i

The armature 72 of the magnet is normally raised by a spring or otherwise, but when the magnet is energized the armature is attracted and held on to the cores until motion of the armature to cause the throw of the tripping lever. r1`l1is will now be explained. See Figs. 1, 3, 4 and 5.

On the lever 11 is mounted a bracket 75 for supporting the various parts now to be described. thereby, and farther upI is pivoted at 7G a t latch 7T which is overbalanced by the long l arm 79,. plate 79 is slidably mounted on pins SO in the bracket 75 and is for the purlposc of regulating the movement of the l latch 77, as the latter cannot move beyond thus lowering the contact 6:2 on the sheet the circuit is again broken, and 1 utilize the the stops the circuit will be closedl as con-v The magnet V7l is carried the limit of the slots l81 through which the v pins project.. Thus the latch is always held upwardly by the weight of the arm 78 but is limited in its upward and downward motion by the plate 7 9. The bracket 7 5 forms i a4 loop 82 and between said loop and the tripping lever 11 is mounted a roller 83.

i it

Bti

. be seent'roniliig. l

"the next sheet misses,

'lhe latch is connected to the magnet by :i string tion 84,

l'livotefl ot 85 on the n' lever' 86 connecting' rod 9 is provided, with o hook tl'l' onde roller 88. rlliis lever reste on the roller 83 and passes between the teipping Vlever ll and the loop t@ oi the breeltet 75, lit will that this lever 8G i'noves with the connecting? nod il sind constantly rests on the roller 83 sliding ltlnzreon end passing immediately onder the latch lli When the sheets feed to the platen'ivitliout missing, the tiipping lever remains in the position shown in dotted lines, l, and the lever 85 rides bach sind tenth, on the roller 83, but when a, sheet. misses end erinntnre oil the the electrical circuit is closed, the inegnet, 75 1e enerrized and the einietnie is ete" trected and pulls clown-the happens when latch 77 "'llhis the press is wide open liz-nd the lever 86 is in the position shown in dotted lines in Fig. l.; on thellollowing iol-wurd stroke of the form carrying member theA lever 86 is also moved fom/ord end 'the hook v 87 engages the latch 7 7,

down, and carries the tripping level1 ll 'with it and trips vthe forni. @n

to its normal po sition, thus* again untripping the torni.

the seme thing' will which let-ter is the return stroke therollerl engages the' loop 82 and eeri'iee vtlfle tripping lever ll boel;

ott course happen sgein andthe toi-in will- 'loe tripped every time the magnet is enen gized, which happens every time e sheet misses. When it is desired to trip the press ,by hand, the roller 88 serves es n stop :tor

the tripping lever ll.

fin

'tnched to the prese and The above describes the construction and operation oi my improved tripping inezlmu nism and it is seen, that it ie readily et does not deinnnd any changes in the construction tht-tentv Broadly speaking the invention compirises the following three parte, the lever 86 to be attached to the connecting rod; the latch. mechnnism to be attached to the triggipinp; lever 11 and the feeding' meclionisnl or the equivalent thereto-i1 to be pleced in tient oit the pinten.

Various niodilicotions nim/*ol course be made within the scope ot the invent n, time it is immaterial whether the elcctricol circuit is normally open or' nornmlljv closed, and the precise torni shown need not be followed exactly, :is lt do not wish to he limited except lclniin.' v

i l. In o pinten press inviting o nini/able platen, a nipping.mechanism ineens 'tot' feeding sheets to the said pieten, en electriezxl circuit. a fixed and n movul'ilc t-er'mimil in seid circuit, the carried by the said sheet feeding' menne, e lever for controlling seid tripping' nicchisaid two terminals being" as to the scope oi the claimsi Y mol positionnnd inem, n. sliding lever, controlling lever cnil slittino level' to engage said levee to be tlieown into tripped position to :remate the seid tripping' mechanism.

2. ln e pieten press lowing; an oscillating plot-en and on oscillating 'torno member the combination of o sheet. leerling device, an electricol circuit, normallyopen, means for closing' seid circuit whenn sheet misses. o tripping mechanism, Seine, on electro-magnet :mounted upon sil-id lever end edapted to be eneilgizecl when the seid circnit is closed, andnleans actuated by the said electroanaget when the letter is energieed, `'torceusing the said lever'to be moved 'into tripped position end actuate the seid ti'ippingf the seid prese.

3. ln o pieten press having on oscilla-ting torni member and an oscillating o lever controlling the platen the;

coinbinotion of an electrical circuit normally i o en e inne-net edated to be energized by smid circuit, o mechanical tripping mechamsm, n controlling lever tor the seme, a latch mechanism mounted on seld'lever, e lever movable with the form memberof said press, and nieons for causingthe said ltch mechanism to engage with the seid movable lever when the said magnet is energized to conse the seid controlling lever to be inoved, into tripped ping' mechanism.

1l. ln n platen press the combination of si inechnnicol tripping' mechanism, a control` ling; lever therefor, a l-tch mechanismen seid controlling lever and comprising a plvoted latch, Ineens for limiting the Inovef ments ot' seid lntclnon electrical circuit normally open, an` electroanngnet for' causing n dcwnivmfd movement oi the latch when` the, Said circuit lever movable therewith, n hook in seid lever :ind ineens ior y energize the said electro-magnet whereby the ,ee-id latch engages the position mechanism. n

The combination ot n movable torni carrying member, o mechanical tripping mechanism therefor, nifleve1 tor controllin said meehenisi'n, of lont' pivoted on seid form carrying' member and movable therewith, :in electricolliT operated latch mechanism adepterl to engage the seid p ing the seid controlling lever'froin its nor actuele the said mechnnism to trip the torni and ineens carried by the seid lier adopted tojengnge the said control ling` lever for returning; mel position und untrip seid form. 6. 'lhe combination ot emovable platen, ncuni l'or locking the neme in printing position, e :tonni member edeptecl'to conci; with closing the said ciiffcuittoV *i seid hoolt tot moving' the controlling lever into tl'lp Ved ond .l nctuot the sind tripping g position and actuate said tripv is closed, 'o form member, a

niovablebarfor mov j l said platen, a tripping mechanism for said form member, an electrical circuit, a fixed and a movable terminal in said circuit,

means for preventing' the said twoterminals from contacting during a given period, means coacting with the saidlocking cam for causing the said two terminals to contact at a predetermined moment, a bar pivoted in said form member, a hook in said bar, an electro-magnet in said circuit, a latch operated by said magnet when the said two terminals contact, and adapted to engage the said hook for causing the said tripping mechanism to act. I

7. The combination ot a platen press having a movable platen, a movable form member adapted to coact therewith, a tripping mechanism for said form member, a hand lever for causing said tripping mechanism to act at will, means for conveying a sheet to saidplaten, a locking cam for locking the latter in printing position, movable stops for arresting the movement of a sheet at a given point, an electri lal circuit, a fixed terminal in said circuit and located below the plane in which the sheet moves, a movable terminal in said circuit supported above said plane, means eoacting with the said platen locking cam for preventing the said two terminalsI from contacting during a given period, and for causing the said movable terminals to drop when a sheet is abutting the said stops above the fixed terminal, a latch carried by the said hand lever, a bar pivoted on the said torni member and normally out of engagement with the said latch, whichv latter is caused to engage the said bar by the contacting ot the said two terminals 'For thi-owing the said hand lever into trippediiosition to actuatc the said tripping mechanism.

8. rl`lie combination with a movable form member, a tripping mechanism theret'oi, a

f hand lever toi' actuating said mechanism, a

tie

ing an oscillating platen, an osi-.illziting 'form latch nieclianisn'i on said lever, a movable member slidalily supported between the said lever and the said latch mechanism, an electrical circuit for causing the said latch vmechanism to engage the said movable member to throw the hand lever into tripped posit-ion and actuatc the said tripping mechanism, and a roller carried .by said movable member and adapted to return the said hand lever to its nntripped position.

t). The combination ot a platen press havrnember, a mechanical tril'iping` mechanism for preventing the said l'oi'm member Jfrom coacting with the said platen, a manually operated lever for actuating the said tripv'ping mechanism, the said lever being normally at rest., a latch mechanism carried by andvmovable with the said Vlever and antomatic means for operating the said latch mechanism" to cause the said lever to be moved from its normal posit-ion and actuate the said tripping mechanism without stopping the said n'ess. i

l0. ln a printing machine having an oscillating platen and an oscillating form member the combination of an electrical circuit, two terminals in the said circuit in the path of the sheet, means for keeping the one of the said terminals away from the other one except when a sheet passes between them, a tripping mechanism, a manually operated lever controlling the latter and normally at rest and means actuated by the closing of the said circuit when a sheet fails to pass between said terminals whereby the said lever is thrown to actuate the said tripping mechanism to trip the said form member without stopping the press.

ll. In a platen press having an oscillating platen and an oscillating form member, a cam on the press for locking the said platen in printing position, a tripping mechanism, an electrical circuit for operating the same, a movable and a tired terminal in the said circuit and normally open, and means coacting with the said platen locking cam for causing the said two terminals to contact and close said circuit to operate the said tripping mechanism.

12. rThe, combination of a movable form member, a connecting rod for operating the saine, a mechanical tripping mechanism connected to the said form member and-normally at rest, a lever controlling the said tripping n'iechanisin, said lever being normally stationary, a member interposed between the said form and the said lever and pivoted on the said connecting rod, and means forcausingsaid lever to be engaged by the said member to actuatefthe said tripping mechanism.

13. The 'e'omliination of a movable form member, a. n'iechai'iica'l tripping mechanism, a hand lever controlling the, latter and normally at rest, a member pivoted on the said form member and movablel therewith and means for causing the said pivoted member to engage the said hand lever to trip and untrip the said form member.

l-l. rEhe combination olla movable form member, an oscillating sheet conveying device, an electrical circuit, two contacts in the latter carried by the said sheet conveying device, means for oscillating one ot the said contacts independently oli the oscillation of the said device, aV tripping mechanism and means operated by the closing of the said contacts to actuate the said tripping mechanism to trip and -untrip the said torni men'iber.

l5. ln a platen press the 'combination of a sheet conveying device, a lower iiXed member and an upper movable memberv carried by the said device, the said two members being normally out et contact, ne'ans for causing; the scifi upper member te fell by gravity upon the said lower member enel fle vices actuated by the contacting of the saiol two members for tripping anni automatically untripjging the seid preee iii. ,in e pleiten prese the combination of sheet conveying menne7 e lower fixed end. an upper movable member securefl to the seid ine/ene., the seid two members bein g normally out of Contact, ineens for cti-using the Seial upper member to feli by gravity upon the seid lower member enti devices actuated by the contacting of the seid two members for tripping and nntrpping tbe seid prese, y

17. ln c pieten prees. the combination oi' sheet conveying means, mechenism for oseilleting the seme constantly, two members carried by the seid conveying means, one of the seid two members being,1 movable with relation to the other member and independently of tlie oscillations of the seid means, the said two members being normally out of Contact, means for causing the said movable member to tfall by gravity onto the seici other member end devices ectueted by the contacting of the said two members ior tripping and untrippin the seid press Witl1 out stopping the oscillations of the seid sheet conveying ineens.

18. ln e. printing machine the combinetion of im electrical circuit having two ter-- minels, menne for oscillating' the seme simultaneously, other means for operating one of tbe eeil tivo terminals independently of .the seid oscillating movement, e. tripping mechanism and means actuated by the closing of the said circuit through the seid. two terminals for actuating the seid tripping mechanism for automatically tripping and untripping the said machine.

40 Signed at Newark, N. J. this 24th day of Feby 1908.

LEWIS E. MORRISON, Witnesses:

Cime. E. DANIEL, S.- H. PLUM, 2d. 

